Usually this error message (MSVCR100.dll missing on your Windows machine) will appear if you don’t have Microsoft Visual C++ Redistributable.
What hides behind this name is the Microsoft Visual C++ Redistributable which can easily be downloaded on the Microsoft website as x86 or x64 edition:
32 bit: http://www.microsoft.com/download/en/details.aspx?id=5555
64 bit: http://www.microsoft.com/download/en/details.aspx?id=14632
Usually the application that misses the dll indicates what version you need – if one does not work, simply install the other.